Gravity concentrator



May 12, 1925. I 1,53%,424

W. G. ELMS V GRAVITY CONCENTRATQR Filed Ap iil 17. 1924 3 "III Appiication file-G To (1.35 wlaonz viz? may concern.- 7

Be it known that I, EVILLIAM a citizen of the United Skates,

()ukiand, in "Lhe contuiy of A =21; sec State of Qaiii'ornnn have in: 4 app it new and UFLJhIi Unprovennn' ed in nccetrihinee with my ink 82131011;

;etion on the-line 2-2 of on, rcmrmnte be ng c compar ng ejirzm'in 3 i; a section on the Line 3-S This iUJQDiHT-i rehues to gravity conccw 1;

trzitors and more pzu'iicuinriy to um (zines is an ei'ihugeci. detail of cmiwinrntors r Separating cx'trezneiy new shoeing the mounting of i fine mines such as are often refe red to as reducer r111 sectional he oui'let flake 01d herons: of he innhil oi? the Referring now more perricuhu'ly to the pnrtici to ore-4k Lhe surface of e \YMOY drawings, :1 (wing 38 employed. comprising i v ing'h' (hair on upper eyiindriczil section 1.0 and a lower upon which. they res-c :anu nccnm tendency to :[ionc upon the waic &

it will be ohw ious that sue; mines wail he iewer end oi (ihi conical section bring pro i mildly tzqoering' conic-(1i Section 11, the

CXilGli'iCfif, eifiicnit to 'iLl'llUTO from water and ."deii with a disvimge ipe 12 having a more diii'icuit to sepzrnie :mz'i remove from con i 1 lunnediately adsiime and iineiy divided substances with 'Cle Wail of the which they are intermingled during: the l "z=.'ing5'isprovi'ied process of CUHQ'UUUHtiUH An importnnt oh- I; ami its upper jest oi the invenii 11 is to provide a aievice in side W211i. 3G for sl'shmer ing Suchsmnii values in ziii three ringed along its dimensions so that their specific gran" e5 16 combining hroughliimo 'p {0 permit Winn r: qeningsiio receivoiihe therei from h inter and a; lh on time At Iihe lower eimi "Lo vrocide uciecicv 1g is m'o'vi'; l with 95 51 2111i on wnich the iowerthat the i .oe :i a V. Each ate see the fluid (:11 .b i Y; lower edge Nlilh the ."QLiUOr; cm' inuousiy. v 1rwim ru'diy projecting sailing flange 19. this princmle of submerge? Y r s11;

vieusly em Jioyed 1n the irned flange 125 of the casing *ziiues bni zipper-aims 0; While the seal flanges: of the which i an; :i'nnnhar $2115 7 I seec'io' :1; "Lite upper end next o yixien due to the .i'nci a "che fluid is not cornea interminvi with he nnnes considerably further separation. essary. i gate section if? bears an outstill fnrihor object of the im'en j'on is i b ergo spent 20 by means of to provide a device of this chmncter which which the overflow may be conducted to 00 may be simply and ehenpiy constructed, any suitable fiume generallyindicated at 21.

which win he ihi'rzh e and eii'ieien'i in ser- Arranged wi'izhin the casing 10 at the vice one a general nope Yemeni, in the art. 1 end thereof and supported from the A fur-"flier object the invention is ho 11s of the casing by brackets is an upprovide a device of this diameter which, 'vzr lh, tapering cone Supported milwhiie prinmriiy imencied for use in desiinr any i f 1118 casing is an intake pipe 2.4 how-- ing of the minerals, only be readily eniing adiacelit its lower end a reducer 25 w. insertnumber of g: m sections the ow and the egiectiiie depth of may he vn1:1::.biy regulated.

pioyed. for desiiniing oilher ina i'erinls in which. tapers downwardly and which is prowr-tshmg gmvel, sand and the like Ior use in wider: at l'ES lower end "with an outlet re This ouilet reducer has an in- 'uige upon which are 1ntermountable a/plurality of disks construction.

These and other 01 m constructlon shown m finnge of the lower gate 1'? 28 having-central openings 29 of different diameters; This outlet reducer is arranged immediately ,above the upper end of the apex of the; cone 23 so that. the fiuidjpassing through the inlet pipe isv discharged against the cone, the stream varying in size according to the size of the opening of the outlet' reducer disk 28: which is employed.

Inoperationof the device, the .inlet pipe 24:}: =ivesuthe discharge, from the fine stream of .a multiple stream ksilliaker table gothere-indisclosed); which co sists' of the er particlesgot values and grit intermininletupipe I 24' is" shown a composed f :tele- 'scopicseetions-butit w;i1 lbe understo d, of fcours'e,that thissconstruction is but due of many ivhich might be employed 's the fiuid,h-yalues and 'slimepass from the lowcr end of th'e inlet pipe against the .cone/ a, considerable agitation results. It Will lie obviff I qoustl at assoon as-thercasmg becomes filled f fluidagainst ther coneiwill cause this incomiing lfluid to takean upwardtrend-towardt .p1pe directed into the upperendl ofvt'h'e casing andha'ving its lowercnd decreasing in size and terminating .iminediately above and with the engagement of the incoming theiup erend"ofjthecasing andduring this upwa'u moyen ent, the flake-gold and similar valuesicarried the stream will be completely subniergeduand .vvill; sinkgto the bottoin of ,tl'1ecentainer in x the cone-shaped, sectiqnvll thereof. The-slime, however, due to -the agitation will-be? so thoroughly ,mixed with the; waterthat it willbe carried up-j wardly and since J ther casixj'g is so ,construct ed that tlie upward sp 'a bf. the waterffis' not checkedhat' anys point, 7 the Y slime will. not be allowed to settlejbut willj becarried 01f by the )vvaterltl1rough 'the; outlet 20.

Theeperation of thef device can i be ob:

served through the transparent panel 14 and values drawn ofl' from time to time to preventthe upper level of these values from reaching the lower end of the inlet pipeas represented by the lower end of the outlet reducer 26. It will beseen that by adjusting the pressure head of the inlet pipe and the sizewofthe outlet opening 29, the force of the fluidengagingithe cone may be regulated and accordingly the degree of turs lIlOll to which the mixture is subjected. It will also be obvious that by. changing the depth of subinergence anarrangeinent can be arrived at, atwhich.substantially none of thevalues are carried ofi -ithroughthe overflow and at the same timepractically all of,the slime and, lighter foreign substances contained in-thefluid are removed.

It will, of course -be obvious th'atithe con i struction ,hereinbefore set forth is capable of a considerable rangeaof change and modi fication' Without in :any manner departing from the spirit ofin invention andil accordingly do notlinntmyself tosuch specific structure except as hereinafter eclaimed.

I claim:%

A concentratorcomprising,a cylindrical casing, having a doWnWardly taperinglower end a cone supportedavithinxthe casingimine' iately'above such lower end, an inlet fired relation to the cone to discharge thereagainst 1n'eans-,-for regulaitingthe size. of the outlet orifice of the inlet' pipe, means for regulating the effective height sof the casing and means: ,for regulating theueifec' t'ive head or the inlet 'ipe, theieffecti'vedi ameterof the casingecreasingat "a point spaeedehove the lowerend- ,of theinlet pipe; In testlmony- 'v'hereof I hereuntoiaflixmy signature;

fiWI mM 7G; ELMs; 

